2025 Compare Cities People:
Thousand Oaks, CA vs Petaluma, CA

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Highlights
- Petaluma is 0% more densely populated than Thousand Oaks.
- People are 2.5% less likely to be married in Petaluma.
- The Median Age is 1.6 years younger in Petaluma.
 Thousand Oaks, CAPetaluma, CAUnited States
 Population  Unlock60,050329,725,481
 Female Population50.8%  Unlock50.5%
 Male Population49.2%  Unlock49.5%
 Median Age  Unlock42.838.4
 space3
 Population - 2010126,688  Unlock309,327,143
 Population - 2000  Unlock54,548285,036,114
 Population - 1990104,352  Unlock251,960,433
 Pop. 2000 to Now  Unlock11.2%15.6%
 Pop. 1990 to Now21.0%  Unlock30.8%
 space4
 Population Density  Unlock4,175.493.4
 Land Area55.3  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 Thousand Oaks, CAPetaluma, CAUnited States
 Age 0 to 45.1%  Unlock5.9%
 Age 5 to 9  Unlock5.5%6.1%
 Age 10 to 146.6%  Unlock6.6%
 Age 15 to 17  Unlock4.0%3.9%
 Age 18 to 203.8%  Unlock4.0%
 Age 21 to 24  Unlock3.0%5.2%
 Age 25 to 349.9%  Unlock13.8%
 Age 35 to 44  Unlock13.7%12.9%
 Age 45 to 5414.8%  Unlock12.6%
 Age 55 to 59  Unlock7.4%6.7%
 Age 60 to 647.1%  Unlock6.3%
 Age 65 to 74  Unlock11.1%9.6%
 Age 75 to 845.3%  Unlock4.5%
 Age 85 and over  Unlock2.6%1.9%
 space1
 Race
 Thousand Oaks, CAPetaluma, CAUnited States
 White64.9%  Unlock59.4%
 Black  Unlock1.3%12.2%
 Asian9.5%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.2%0.4%
 Two or More Races3.8%  Unlock3.2%
 Hispanic  Unlock21.6%18.4%
 space2
 Marriage & Family
 Thousand Oaks, CAPetaluma, CAUnited States
 Married Population54.8%  Unlock49.8%
     Currently Married  Unlock51.8%48.0%
 Married but Separated0.9%  Unlock1.8%
 Single Population  Unlock46.6%50.2%
 Never Married29.3%  Unlock33.8%
 Divorced  Unlock11.6%10.8%
 Widowed6.1%  Unlock5.6%
 space5
 Household Size  Unlock2.612.60
 Households46,270  Unlock124,010,992
 Family Households  Unlock15,05980,755,759
     Married couple, w/children33.2%  Unlock30.5%
     Married couple, no children  Unlock45.5%42.9%
 Non Family Households14,372  Unlock43,255,233
     Single householder, w/children  Unlock11.6%15.8%
     Single householder, no children10.0%  Unlock10.8%
Reviews for Thousand Oaks    32 Reviews

Over 13 years ago

All you have to do is to check out the climate of Thousand Oaks on this site or on City-Data to see that the climate here in Thousand Oaks is perfect, if you don't like  More

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I've lived here my entire life, which I suppose isn't that long only 17 years. Its been a nice place to grow up, lots of opportunities and places to go as a kid. Park  More

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I have lived here over 10 years. I'm not sure what some of the reviewers are talking about, as it pertains to "nothing to do for kids" here. We have a fantastic Parks  More

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Reviews for Petaluma    16 Reviews

I agree with the low star reviews. Been here for 25 years, raised a family and seen everything turn to the left and worse. Weather is glorious, love the old Victorians  More

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We’ve lived here for 3 years and we love it. It has taken some time to grow on us. We moved from SF where we had lived over 15 years, we were not used to one year leases  More

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I’ve lived here a couple of years (after living in others parts of the Bay Area for 15+ years) and I love it! Great neighborhoods, friendly folks, good schools with  More

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